Bumblebee mimic robber fly (Laphria) perched on a leaf at Sequoyah National Wildlife Refuge in Oklahoma

A Bumblebee Mimic Robber Fly at Sequoyah National Wildlife Refuge

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I went out to Sequoyah National Wildlife Refuge expecting frogs. I came home excited about an insect I had never photographed before.

A quick surprise while I worked frogs

I was working a frog subject when something that looked like a bumblebee landed nearby. It settled on a leaf long enough for me to swing the lens over and start shooting. At first glance, it really did read as “bumblebee.”

Bumblebee mimic robber fly (Laphria) perched on a leaf at Sequoyah National Wildlife Refuge in Oklahoma
A Bumblebee Mimic Robber Fly (Laphria) that caught my eye while I was photographing frogs at Sequoyah NWR.

Wildlife Notes

What tipped me off it was not a bumblebee

Once I looked closer through the viewfinder, the shape and posture felt different. It looked like a fly mimicking a bee, not an actual bee. I photographed it anyway and figured I would sort it out later.

The ID, and why mimicry matters

Back home, I went through the photos and tried to identify it. I could not land on a species, so I reached out to my friend Mia for help. With her input, I learned it was a robber fly in the genus Laphria, often called a bumblebee mimic robber fly.

That mimic look is not an accident. In general terms, a bumblebee-like pattern can help discourage predators that have learned to avoid stinging insects. I could not confirm the exact species from my images, and that is okay. Several look similar.

Behavior I noticed in the field

This one perched on a leaf, almost like it was waiting on something. Robber flies are predators, and many will sit and watch before they make a quick grab. Seeing that behavior up close was a fun bonus on a frog-focused outing.

Photography Notes

The setup and why I used these settings

I shot this handheld with my Canon EOS R5 and the Canon RF 100–500mm at 500mm. I went with 1/2000 sec at f/8, ISO 1600, and 0 exposure compensation. The fast shutter helped freeze small movements from the insect and my own handholding.

Camera settings (as captured)

  • Camera: Canon EOS R5
  • Lens: Canon RF100-500mm F4.5-7.1 L IS USM
  • Focal Length: 500mm
  • Aperture: f/8
  • Shutter Speed: 1/2000 second
  • ISO: 1600
  • Exposure Compensation: 0
  • Support: Handheld

Field approach

When the insect landed, I tried to keep my movement slow and direct. I stayed on the leaf plane and fired short bursts. With tiny subjects, a slight angle change can throw off focus fast, especially at 500mm. Stopping down to f/8 helped give me a little extra margin.

Closing

This was a good reminder for me. Even when I have a plan, nature can hand me something better. Sequoyah National Wildlife Refuge always seems to have one more surprise if I keep my eyes open.